Shorts, tee and towel. Sweat from every pore (do NOT ask). My stomach roils, my head hurts. And I've realised Terry Pratchett's contribution to natural science and taxonomy.
I am a Troll.
Look it up. Terry says trolls' brains don't work too well at high or even normal temperatures. But send them to Alaska in mid-winter (or the Rimtops, as the case may be) and they start to sparkle and fizz. Is it a coincidence that I've been reading Colin Thubron's In Siberia?
And a pox on the friendly souls who make wisecracks about not being able to tell the difference.